feat(inboxes): add inbox disable toggle

app/javascript/dashboard/i18n/locale/en/conversation.json

@@ -31,6 +31,7 @@
     "LOADING_INBOXES": "Loading inboxes",
     "LOADING_CONVERSATIONS": "Loading Conversations",
     "CANNOT_REPLY": "You cannot reply due to",
+    "INBOX_DISABLED": "This inbox is disabled. You cannot send messages.",
     "24_HOURS_WINDOW": "24 hour message window restriction",
     "48_HOURS_WINDOW": "48 hour message window restriction",
     "API_HOURS_WINDOW": "You can only reply to this conversation within {hours} hours",
@@ -211,6 +212,7 @@
       "MSG_INPUT": "Shift + enter for new line. Start with '/' to select a Canned Response.",
       "PRIVATE_MSG_INPUT": "Shift + enter for new line. This will be visible only to Agents",
       "MESSAGING_RESTRICTED": "You cannot reply to this conversation",
+      "MESSAGING_RESTRICTED_INBOX": "This inbox is disabled. You cannot send messages.",
       "MESSAGING_RESTRICTED_WHATSAPP": "You can only reply using a template message due to 24-hour message window restriction",
       "MESSAGING_RESTRICTED_API": "You can only reply using a template message due to message window restriction",
       "MESSAGE_SIGNATURE_NOT_CONFIGURED": "Message signature is not configured, please configure it in profile settings.",

app/javascript/dashboard/i18n/locale/en/inboxMgmt.json

@@ -743,6 +743,7 @@
       }
     },
     "SETTINGS": "Settings",
+    "DISABLED": "Disabled",
     "FEATURES": {
       "LABEL": "Features",
       "DISPLAY_FILE_PICKER": "Display file picker on the widget",
@@ -772,6 +773,10 @@
       },
       "INBOX_AGENTS": "Agents",
       "INBOX_AGENTS_SUB_TEXT": "Add or remove agents from this inbox",
+      "INBOX_ACTIVE": {
+        "TITLE": "Enable inbox",
+        "DESCRIPTION": "When disabled, this inbox stays visible but stops new conversations, incoming messages, replies, private notes, automations, and bot processing."
+      },
       "AGENT_ASSIGNMENT": "Conversation Assignment",
       "AGENT_ASSIGNMENT_SUB_TEXT": "Update conversation assignment settings",
       "UPDATE": "Update",